CVE-2026-102865

Analyzed Analyzed - Analysis Complete

Incorrect Authorization in Microsoft Office SharePoint

Publication date: 2026-10-13

Last updated on: 2026-10-14

Assigner: Microsoft Corporation

Description

Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-13

Last Modified

2026-10-14

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-102865

EUVD

EUVD-2026-99048

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	sharepoint_server	to 16.0.20326.20190 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability is an incorrect authorization issue in Microsoft Office SharePoint. It allows an attacker who is already authorized to access the system to disclose sensitive information over a network without needing additional permissions.

Impact Analysis

An attacker could exploit this to access and steal confidential data stored in SharePoint, such as documents or user information, potentially leading to data breaches or unauthorized information exposure.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR or HIPAA by enabling unauthorized data disclosure. Organizations may face legal penalties, fines, or reputational damage if sensitive data is exposed due to this flaw.

Mitigation Strategies

Apply the latest security updates from Microsoft for SharePoint Server to address the incorrect authorization issue. Monitor Microsoft's official security advisories for patches and follow their recommended mitigation steps.

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